Results from crossing over between two genes on the same chromosome |
|||
| Description | Events |
Ratio
|
|
|
parental
|
recombinant
|
||
| No Cross Over | Control |
4
|
0
|
| Single CrossOver | Two Strand Single |
2
|
2
|
| Double Cross Over | Two Strand Double |
4
|
0
|
| Three Strand Double |
2
|
2
|
|
| Four Strand Double |
0
|
4
|
|
| Sumation (double) |
6
|
6
|
|
What happened to the two strand double?
How does this result prove that crossing over leads to 1:1 ratio?
Text iGenetics by Peter J. Russell
This web site is provided for instruction in Botany and Zoology 342
by Kenneth G. Wilson,
Professor of Botany
Miami University
wilsonkg@muohio.edu
